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      <li style="float: left;"><a href="migration72.new-functions.html">« 新函数</a></li>
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    <li><a href="index.html">PHP Manual</a></li>
    <li><a href="migration72.html">从 PHP 7.1.x 移植到 PHP 7.2.x</a></li>
    <li>新全局常量</li>
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<div id="layout">
  <div id="layout-content"><div id="migration72.constants" class="sect1">
 <h2 class="title">新全局常量</h2>

 <div class="sect2" id="migration72.constants.core">
  <h3 class="title">PHP 内核</h3>

  <ul class="itemizedlist">
   <li class="listitem">
    <span class="simpara">
     <a href="reserved.constants.html#constant.php-float-dig" class="link"><strong><code>PHP_FLOAT_DIG</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="reserved.constants.html#constant.php-float-epsilon" class="link"><strong><code>PHP_FLOAT_EPSILON</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="reserved.constants.html#constant.php-float-min" class="link"><strong><code>PHP_FLOAT_MIN</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="reserved.constants.html#constant.php-float-max" class="link"><strong><code>PHP_FLOAT_MAX</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="reserved.constants.html#constant.php-os-family" class="link"><strong><code>PHP_OS_FAMILY</code></strong></a>
    </span>
   </li>
  </ul>
 </div>

 <div class="sect2" id="migration72.constants.fileinfo">
  <h3 class="title"><a href="book.fileinfo.html" class="link">文件信息</a></h3>

  <ul class="itemizedlist">
   <li class="listitem">
    <span class="simpara">
     <a href="fileinfo.constants.html#constant.fileinfo-extension" class="link"><strong><code>FILEINFO_EXTENSION</code></strong></a>
    </span>
   </li>
  </ul>
 </div>

 <div class="sect2" id="migration72.constants.json">
  <h3 class="title"><a href="book.json.html" class="link">JSON</a></h3>

  <ul class="itemizedlist">
   <li class="listitem">
    <span class="simpara">
     <strong><code>JSON_INVALID_UTF8_IGNORE</code></strong>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <strong><code>JSON_INVALID_UTF8_SUBSTITUTE</code></strong>
    </span>
   </li>
  </ul>
 </div>

 <div class="sect2" id="migration72.constants.image">
  <h3 class="title"><a href="book.image.html" class="link">GD</a></h3>

  <ul class="itemizedlist">
   <li class="listitem">
    <span class="simpara">
     <a href="image.constants.html#constant.img-effect-multiply" class="link"><strong><code>IMG_EFFECT_MULTIPLY</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="image.constants.html#constant.img-bmp" class="link"><strong><code>IMG_BMP</code></strong></a>
    </span>
   </li>
  </ul>
 </div>

 <div class="sect2" id="migration72.constants.ldap">
  <h3 class="title"><a href="book.ldap.html" class="link">LDAP</a></h3>

  <ul class="itemizedlist">
   <li class="listitem">
    <span class="simpara">
     <a href="ldap.constants.html#constant.ldap-exop-start-tls" class="link"><strong><code>LDAP_EXOP_START_TLS</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="ldap.constants.html#constant.ldap-exop-modify-passwd" class="link"><strong><code>LDAP_EXOP_MODIFY_PASSWD</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="ldap.constants.html#constant.ldap-exop-refresh" class="link"><strong><code>LDAP_EXOP_REFRESH</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="ldap.constants.html#constant.ldap-exop-who-am-i" class="link"><strong><code>LDAP_EXOP_WHO_AM_I</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="ldap.constants.html#constant.ldap-exop-turn" class="link"><strong><code>LDAP_EXOP_TURN</code></strong></a>
    </span>
   </li>
  </ul>
 </div>

 <div class="sect2" id="migration72.constants.password">
  <h3 class="title"><a href="book.password.html" class="link">密码散列</a></h3>

  <ul class="itemizedlist">
   <li class="listitem">
    <span class="simpara">
     <a href="password.constants.html#constant.password-argon2i" class="link"><strong><code>PASSWORD_ARGON2I</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="password.constants.html#constant.password-argon2-default-memory-cost" class="link"><strong><code>PASSWORD_ARGON2_DEFAULT_MEMORY_COST</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="password.constants.html#constant.password-argon2-default-time-cost" class="link"><strong><code>PASSWORD_ARGON2_DEFAULT_TIME_COST</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="password.constants.html#constant.password-argon2-default-threads" class="link"><strong><code>PASSWORD_ARGON2_DEFAULT_THREADS</code></strong></a>
    </span>
   </li>
  </ul>
 </div>

 <div class="sect2" id="migration72.constants.pcre">
  <h3 class="title"><a href="book.pcre.html" class="link">PCRE</a></h3>

  <ul class="itemizedlist">
   <li class="listitem">
    <span class="simpara">
     <strong><code><a href="" class="link">PREG_UNMATCHED_AS_NULL</a></code></strong>
    </span>
   </li>
  </ul>
 </div>

 <div class="sect2" id="migration72.constants.pdo">
  <h3 class="title"><a href="book.pdo.html" class="link">PDO</a></h3>

  <ul class="itemizedlist">
   <li class="listitem">
    <span class="simpara">
     <a href="pdo.constants.html#pdo.constants.param-str-natl" class="link"><strong><code>PDO::PARAM_STR_NATL</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="pdo.constants.html#pdo.constants.param-str-char" class="link"><strong><code>PDO::PARAM_STR_CHAR</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="pdo.constants.html#pdo.constants.attr-default-str-param" class="link"><strong><code>PDO::ATTR_DEFAULT_STR_PARAM</code></strong></a>
    </span>
   </li>
  </ul>
 </div>

 <div class="sect2" id="migration72.constants.sodium">
  <h3 class="title"><a href="book.sodium.html" class="link">Sodium</a></h3>

  <ul class="itemizedlist">
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-library-version" class="link"><strong><code>SODIUM_LIBRARY_VERSION</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-library-major-version" class="link"><strong><code>SODIUM_LIBRARY_MAJOR_VERSION</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-library-minor-version" class="link"><strong><code>SODIUM_LIBRARY_MINOR_VERSION</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-aead-aes256gcm-keybytes" class="link"><strong><code>SODIUM_CRYPTO_AEAD_AES256GCM_KEYBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-aead-aes256gcm-nsecbytes" class="link"><strong><code>SODIUM_CRYPTO_AEAD_AES256GCM_NSECBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-aead-aes256gcm-npubbytes" class="link"><strong><code>SODIUM_CRYPTO_AEAD_AES256GCM_NPUBBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-aead-aes256gcm-abytes" class="link"><strong><code>SODIUM_CRYPTO_AEAD_AES256GCM_ABYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-aead-chacha20poly1305-keybytes" class="link"><strong><code>SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-aead-chacha20poly1305-nsecbytes" class="link"><strong><code>SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_NSECBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-aead-chacha20poly1305-npubbytes" class="link"><strong><code>SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-aead-chacha20poly1305-abytes" class="link"><strong><code>SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_ABYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-aead-chacha20poly1305-ietf-keybytes" class="link"><strong><code>SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_IETF_KEYBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-aead-chacha20poly1305-ietf-nsecbytes" class="link"><strong><code>SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_IETF_NSECBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-aead-chacha20poly1305-ietf-npubbytes" class="link"><strong><code>SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-aead-chacha20poly1305-ietf-abytes" class="link"><strong><code>SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_IETF_ABYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-auth-bytes" class="link"><strong><code>SODIUM_CRYPTO_AUTH_BYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-auth-keybytes" class="link"><strong><code>SODIUM_CRYPTO_AUTH_KEYBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-box-sealbytes" class="link"><strong><code>SODIUM_CRYPTO_BOX_SEALBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-box-secretkeybytes" class="link"><strong><code>SODIUM_CRYPTO_BOX_SECRETKEYBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-box-publickeybytes" class="link"><strong><code>SODIUM_CRYPTO_BOX_PUBLICKEYBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-box-keypairbytes" class="link"><strong><code>SODIUM_CRYPTO_BOX_KEYPAIRBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-box-macbytes" class="link"><strong><code>SODIUM_CRYPTO_BOX_MACBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-box-noncebytes" class="link"><strong><code>SODIUM_CRYPTO_BOX_NONCEBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-box-seedbytes" class="link"><strong><code>SODIUM_CRYPTO_BOX_SEEDBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-kdf-bytes-min" class="link"><strong><code>SODIUM_CRYPTO_KDF_BYTES_MIN</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-kdf-bytes-max" class="link"><strong><code>SODIUM_CRYPTO_KDF_BYTES_MAX</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-kdf-contextbytes" class="link"><strong><code>SODIUM_CRYPTO_KDF_CONTEXTBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-kdf-keybytes" class="link"><strong><code>SODIUM_CRYPTO_KDF_KEYBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-kx-seedbytes" class="link"><strong><code>SODIUM_CRYPTO_KX_SEEDBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-kx-sessionkeybytes" class="link"><strong><code>SODIUM_CRYPTO_KX_SESSIONKEYBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-kx-publickeybytes" class="link"><strong><code>SODIUM_CRYPTO_KX_PUBLICKEYBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-kx-secretkeybytes" class="link"><strong><code>SODIUM_CRYPTO_KX_SECRETKEYBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-kx-keypairbytes" class="link"><strong><code>SODIUM_CRYPTO_KX_KEYPAIRBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-generichash-bytes" class="link"><strong><code>SODIUM_CRYPTO_GENERICHASH_BYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-generichash-bytes-min" class="link"><strong><code>SODIUM_CRYPTO_GENERICHASH_BYTES_MIN</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-generichash-bytes-max" class="link"><strong><code>SODIUM_CRYPTO_GENERICHASH_BYTES_MAX</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-generichash-keybytes" class="link"><strong><code>SODIUM_CRYPTO_GENERICHASH_KEYBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-generichash-keybytes-min" class="link"><strong><code>SODIUM_CRYPTO_GENERICHASH_KEYBYTES_MIN</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-generichash-keybytes-max" class="link"><strong><code>SODIUM_CRYPTO_GENERICHASH_KEYBYTES_MAX</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-pwhash-alg-argon2i13" class="link"><strong><code>SODIUM_CRYPTO_PWHASH_ALG_ARGON2I13</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-pwhash-alg-default" class="link"><strong><code>SODIUM_CRYPTO_PWHASH_ALG_DEFAULT</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-pwhash-saltbytes" class="link"><strong><code>SODIUM_CRYPTO_PWHASH_SALTBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-pwhash-strprefix" class="link"><strong><code>SODIUM_CRYPTO_PWHASH_STRPREFIX</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-pwhash-opslimit-interactive" class="link"><strong><code>SODIUM_CRYPTO_PWHASH_OPSLIMIT_INTERACTIVE</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-pwhash-memlimit-interactive" class="link"><strong><code>SODIUM_CRYPTO_PWHASH_MEMLIMIT_INTERACTIVE</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-pwhash-opslimit-moderate" class="link"><strong><code>SODIUM_CRYPTO_PWHASH_OPSLIMIT_MODERATE</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-pwhash-memlimit-moderate" class="link"><strong><code>SODIUM_CRYPTO_PWHASH_MEMLIMIT_MODERATE</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-pwhash-opslimit-sensitive" class="link"><strong><code>SODIUM_CRYPTO_PWHASH_OPSLIMIT_SENSITIVE</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-pwhash-memlimit-sensitive" class="link"><strong><code>SODIUM_CRYPTO_PWHASH_MEMLIMIT_SENSITIVE</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-pwhash-scryptsalsa208sha256-saltbytes" class="link"><strong><code>SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_SALTBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-pwhash-scryptsalsa208sha256-strprefix" class="link"><strong><code>SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_STRPREFIX</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-pwhash-scryptsalsa208sha256-opslimit-interactive" class="link"><strong><code>SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_OPSLIMIT_INTERACTIVE</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-pwhash-scryptsalsa208sha256-memlimit-interactive" class="link"><strong><code>SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_MEMLIMIT_INTERACTIVE</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-pwhash-scryptsalsa208sha256-opslimit-sensitive" class="link"><strong><code>SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_OPSLIMIT_SENSITIVE</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-pwhash-scryptsalsa208sha256-memlimit-sensitive" class="link"><strong><code>SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_MEMLIMIT_SENSITIVE</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-scalarmult-bytes" class="link"><strong><code>SODIUM_CRYPTO_SCALARMULT_BYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-scalarmult-scalarbytes" class="link"><strong><code>SODIUM_CRYPTO_SCALARMULT_SCALARBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-shorthash-bytes" class="link"><strong><code>SODIUM_CRYPTO_SHORTHASH_BYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-shorthash-keybytes" class="link"><strong><code>SODIUM_CRYPTO_SHORTHASH_KEYBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-secretbox-keybytes" class="link"><strong><code>SODIUM_CRYPTO_SECRETBOX_KEYBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-secretbox-macbytes" class="link"><strong><code>SODIUM_CRYPTO_SECRETBOX_MACBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-secretbox-noncebytes" class="link"><strong><code>SODIUM_CRYPTO_SECRETBOX_NONCEBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-sign-bytes" class="link"><strong><code>SODIUM_CRYPTO_SIGN_BYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-sign-seedbytes" class="link"><strong><code>SODIUM_CRYPTO_SIGN_SEEDBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-sign-publickeybytes" class="link"><strong><code>SODIUM_CRYPTO_SIGN_PUBLICKEYBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-sign-secretkeybytes" class="link"><strong><code>SODIUM_CRYPTO_SIGN_SECRETKEYBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-sign-keypairbytes" class="link"><strong><code>SODIUM_CRYPTO_SIGN_KEYPAIRBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-stream-noncebytes" class="link"><strong><code>SODIUM_CRYPTO_STREAM_NONCEBYTES</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="sodium.constants.html#constant.sodium-crypto-stream-keybytes" class="link"><strong><code>SODIUM_CRYPTO_STREAM_KEYBYTES</code></strong></a>
    </span>
   </li>
  </ul>
 </div>

 <div class="sect2" id="migration72.constants.zip">
  <h3 class="title"><a href="book.zip.html" class="link">Zip</a></h3>

  <ul class="itemizedlist">
   <li class="listitem">
    <span class="simpara">
     <a href="zip.constants.html#ziparchive.constants.em-none" class="link"><strong><code>ZipArchive::EM_NONE</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="zip.constants.html#ziparchive.constants.em-aez-128" class="link"><strong><code>ZipArchive::EM_AES_128</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="zip.constants.html#ziparchive.constants.em-aez-192" class="link"><strong><code>ZipArchive::EM_AES_192</code></strong></a>
    </span>
   </li>
   <li class="listitem">
    <span class="simpara">
     <a href="zip.constants.html#ziparchive.constants.em-aes256" class="link"><strong><code>ZipArchive::EM_AES_256</code></strong></a>
    </span>
   </li>
  </ul>
 </div>
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